Are you in need of a place to stay? The United States has been split into four zones based on 40 years of tornado history and more than 100 years of hurricane history, which geographically represent the number and strength of violent windstorms. Zone IV has seen the most and the most powerful tornadoes. Zone III comprises coastal areas that are vulnerable to hurricanes and has seen a lot of tornado activity. Check with your local building official, meteorologist, emergency management official, or television weather reporter to discover more about the wind history in your area. Your home was most likely constructed in compliance with local construction codes that take into account the impacts of "code-approved" design winds in your location.